Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,608

And here are the last few puzzles I have for the time being:

Count the Shapes

Broken Stick

Missing Number 2

Touching Marbles

Cut to the Average

Placing Sheets

What is the Pattern

Cards in a Square

Cut the Cross

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,015

Hi MIF

I found these slightly harder than the ones before, but still very nice.

For the "What is the pattern" puzzle it couldn't actually be stated that Stephen is the author. It is a well and long known one. Look-and-say Sequence

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,772

Hi MathsIsFun;

Very nice puzzles. My favorite is "broken stick."

"Cards in a square," is a mutually orthogonal Latin square. These are pretty widely known with many open questions.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,608

anonimnystefy wrote:

For the "What is the pattern" puzzle it couldn't actually be stated that Stephen is the author. It is a well and long known one. Look-and-say Sequence

Good point. I have just put him as Author for all these new puzzles, there may be others that are mis-cited.

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,015

Most of the others look original.

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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**ShivamS****Member**- Registered: 2011-02-07
- Posts: 3,648

Nice puzzles. Love broken sticks.

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**jennylee1203****Member**- Registered: 2012-09-27
- Posts: 11

Very nice puzzles.

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